Home / 515,176.20-772,756.20-141,199.20

Finding the Fourth Proportional to 515,176.20, 772,756.20 and 141,199.20

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Solution

The fourth proportional to 515,176.20, 772,756.20 and 141,199.20 is: 211,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,176.20 : 772,756.20 = 141,199.20 : x
  2. Step 2: Convert to fraction form
    515,176.20/772,756.20 = 141,199.20/x
  3. Step 3: Cross multiply
    515,176.20x = 772,756.20 × 141,199.20
  4. Step 4: Simplify right side
    515,176.20x = 109,112,557,235.04
  5. Step 5: Solve for x
    x = 109,112,557,235.04/515,176.20
  6. Step 6: Final answer
    x = 211,796.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.